Integrated SU(1,1) interferometers (C02)

• Subject Area: Experimental Condensed Matter Physics
• Term: from 2014 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 231447078

The primary goal of this project phase is to develop LiNbO3 based integrated circuits for quantum metrology applications. Based on LiNbO3-tool box components developed in the first phase of the project, we plan to develop integrated non-linear SU(1,1) interferometers in different configurations. Such interferometers are a very promising tool for supersensitive measurements in the relatively unexplored field of integrated continuous-variable quantum optics. Moreover, we expect to gain new physics insights into such quantum interferometers which can operate with different colours of the interfering photons and provide also new prospects for quantum source engineering and quantum information processing.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 142: Tailored nonlinear photonics: From fundamental concepts to functional structures
• Applicant Institution: Universität Paderborn
• Project Heads: Professor Dr. Torsten Meier, until 12/2017; Professorin Dr. Polina Sharapova, since 1/2018; Professorin Dr. Christine Silberhorn